<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
      "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">

<head>
  <title>Formulaire</title>
  <meta http-equiv="Content-Type" content="text/html;charset=UTF-8" />
</head>

<body>
<?php
  echo "Bonjour, " . ($_GET["genre"] == "f" ? "Mlle " : "M. ") . $_GET["prenom"] . " !";
?>
  <p>Formulaire soumis.</p>
</body>

</html>